Roll compression assembly



Tv R. DUNKERLY ROLL COMPRESSION ASSEMBLY Aug. 7, 1951 2,563,224

2 Sheets-Sheet 1 Filed April 24, 1950 O 1920621601": 7i/0M45-E. 50/1/4690,

1951 T. R. DUNKERLY 2,563,224

ROLL COMPRESSION ASSEMBLY Filed April 24, 1950 2 Sheets-Sheet 2 Patented Aug. 7, 1951 UNITED T TES PATEN O I 2 4I n v. "II 1 R 0LL COMPRESSION ASSEMBLY a i v 3 I v ilThomasRiDunkerly, Cdairton, Ia. I" I V I Application Apnizi, 1950, Serial No; 157,813

seam." (01457-102) The present invention relates to a roll-pressure assembly and more particularly to an assembly foradjusting and maintaining the roll pressure in a wiper roll stand.

In the processing of strip essary .to remove excess moisture from the surface of the strip after cleaning or pickling treatments. The usual practice to pass the strip through a wiper roll unit consisting of a pair of rubber covered rolls carried in a conventional roll stand.

Prior to my invention, roll pressure in the wiper rollstand was maintainedby compression springs and was adjusted by ascrew and handwheel arrangement'well known to those versed in the art. With this conventional arrange; ment', considerable time as required to dismantle, remove and reassemble the pressure-adjusting mechanism when a roll change was necessary. Another disadvantage inherent inthis arrangement was the high initial cost of construction of the equipment due mainly to the necessity of machining the adjusting screws and the bearing boxes.

It is accordingly an object of my invention I to provide a roll-pressure assembly for adjusting and maintaining the compression between two rolls in a roll stand which will permit speedy and facile roll compression adjustment and which may be speedily removed to permit rapid roll changes.

It is a further object of my invention to provide a roll-pressure assembly which is rugged in construction and inexpensive to manufacture.

These and other objects will be more apparent after referring to the following specification and attached drawings, in which:

Figure 1 is a plan view of a roll stand embodying the invention;

Figure 2 is an elevational view showing the roll-pressure assembly of the invention in cross section; and

Figure 3 is a side elevational view.

Referring more particularly to the drawings, reference numeral 2 indicates generally a roll stand having a pair of wiping rolls A disposed therein. The roll stand 2 consists of two spaced housings 4 and 6. Each housing is made up of a pair of spaced upright frame members 8 and I0 supported on a common base l2. A pair of roll-neck bearing boxes i4 is slidably disposed between the frame members 8 and III in vertical alignment, as best seen in Figure 3. This construction is conventional except for the novel pressure assembly of my invention, indicated steel, it is often nec-.

generally by the reference numeral 16, the details of which will now be described.

Reference numeral l8 indicates a tubularmember having a disc 20 welded nearthe lower end thereof to form a bearing surface for a compression spring.22 which is disposed in the lower end of the tube l8 and projects downwardlytherefrom. The spring 22 is retained in the-end of tube [8 by a small rectangularslug: =24.which. is-inserted through. an opening 26 in the wallz of thetubeMIB and welded inpositionrto secure. the first turn of the spring between the slug-24 andthedisc 20. V 1

The.upper end 28. of. tube I8 is flattened to.

accommodate a flat bar 30 which maybe welded. therein. A portion 32 of thebar 30 projects up-i wardly from the tube 18 and isprovidediwith; a plurality of holes 34 arranged in vertical align-1; ment. A positioninglever 361s disposed across; the tops of the frame members 8 and I0. Lever 36 is pivotally supported at one end by a clevis 38 which is mounted on the upper surface of the frame member l0. Lever 36 isprovided with a slotted portion 40 which is adapted to receive the projecting portion 32 of bar 30. A transverse hole 42 is provided through the slotted portion 40. Hole 42 is so positioned that it will register with any of the holes 34 depending on the amount of compression desired, as will be more fully explained hereinafter. A pin 44 is inserted through the hole 42 and the aligned hole 34 to connect the lever 36 with the bar 30. A latch 46 is mounted on the top of frame member 8 diametrically opposite the clevis 38. Lever 36 extends from its pivotal connection in clevis 38 to beyond latch 46. Latch 46 is provided with a shoulder 46 so that it may positively retain the lever 36 in locked position and prevent its disengagement while under load.

In operation, the compression between the two rolls A may be easily adjusted by removing the pin 44, disengaging the lever 36 from latch 46, and adjusting the position of tube la in relation to the lever 36. If a greater amount of compression is required, the lever is raised so that hole 42 registers with one of the upper holes 34; and if a lesser amount of compression is desired, the lever is adjusted so that hole 42 registers with one of the lower holes 34.

In the event of a roll change, lever 36 is moved down and outwardly to clear shoulder 48 on the latch 46 and is then raised to release the spring pressure. The pin 44 is removed and the lever 36 is raised clear of the housing top. The integral tube, bar and spring assembly. is then removed, thus affording free access to the rolls for removal.

While one embodiment of my invention has been shown and described, it will be apparent that other adaptations and modifications may be made without departing from the scope of the following claims.

Iclaim:

1. In a' roi l st nd having apair of rolls dis posed therein, said roll stand including a. pair of spaced housings each consisting of a pair of base supported spaced upright frame members having two roll-neck bearing boxes slidably disposed therebetween in vertical alignment, the improvemerit in each of said housings for "compressing "vertically aligned holes through the projecting end thereof; a clevis mounted on the top of one of said upright frame members, a latch mounted IE on 'the topof- 'the opposite frame member in a said rolls which comprises a tubularmember disposed between and parallel to said frame memf projecting from the lowrir end thereof to bear elflinstithenpper bearing box, a bar projecting; upwardly from the. top. of-said tubular member, a clevis mountedonthe top of oneof said frame members, a latch mounted on the top. of the op-' posite frame member, a slotted lever having one endpivotally mount'dzin said. clevis and extend-,

ing ;therefroms-to said latch, said lever being adapted to receivethe projecting end of said bar in the slotted portionthereofiand means for conmeeting said bar withsa-id lever, saidlatch beingadapted tohold said leverin locked position.- a a i .2.1 m a rolLstand having a 'pair-of rolls dis posed therein, said roll stand including a pair of spaced housings eachzconsistingof a pair ofbase supported spaced upright frame membershaving- G two roll-neck beai'ing boxes slidablydisposed therebetw'een in: vertioal alignment, the improve meritAir-:eacir of said housings ifor compressing said-rolls 'whichcomprises an elonga'ted tube disposition diametrically opposed to said clevis, and as emfigated i'evera'rm extending from said clevis hers, a spring carried by said tubular member and- 1 1505816 c Said lever being p ly o t d to said clevis at one endfand adapted to be locked insaid latch, adjacent its other end, a slottedportion on said lever arm intermediate its ends for, receiving the projecting end of said bar, said slota ted portion having a transverse hole therethrough adapted to register with the holes in the projecting. end of said bar and-receive a pin therein to couple-said lever arm-with said bar. 1

THOMAS R. DUNKERLY.-

' REFERENCES CITED 1 r'he r i owing refer nces are of re ord in the. h s

UNITED STATES iATENTS.

im c may; E -11 m r 1m an Hie see May '28, 1929'- 

